var MessageBox = function()
	{
		var shower=false;
		var timerx;
		this.initBox = function initBox()
		{
			var namebull="MessageBoxMel";
			if(!$(namebull))
			{
				var Opacityer=0.85;
				var indicateur = document.createElement('div');
				Element.extend(indicateur);
				indicateur.id = namebull;
				indicateur.addClassName('setmessageHide');
				document.body.appendChild(indicateur);
				Element.Methods.setOpacity(namebull,Opacityer);
			}
			else
			{
				if(SavIdBull.className!="setmessageHide")
				{
					SavIdBull.className="setmessageHide";
					SavIdBull.setAttribute("class","setmessageHide");
					SavIdBull.setAttribute("className","setmessageHide");
				}
			}
		}
		
		this.scrollBarX = function scrollBarX()
		{
			if(shower==true)
			{
				var styles;
				var elt = $('question');
				var eltDims = elt.getDimensions();
				var browserDims = $(document.body).getDimensions();
				var y = (browserDims.height - eltDims.height) / 2;
				var x = (browserDims.width - eltDims.width) / 2;

				var varScrol = document.viewport.getScrollOffsets();
				
				y=varScrol.top+200;
				
				styles = { position : 'absolute',
				top : y + 'px',
				left : x + 'px'};
				elt.setStyle(styles);
			}
		}
		
		this.boxShow = function boxShow()
		{
			timerx=setInterval("MessageBoxObj.scrollBarX()",50);
			shower=true;
			var styles;
			var elt = $('question');
			var eltDims = elt.getDimensions();
			var browserDims = $(document.body).getDimensions();
			var y = (browserDims.height - eltDims.height) / 2;
			var x = (browserDims.width - eltDims.width) / 2;
			
			if($('MessageBoxMel'))
			{
				$('MessageBoxMel').className="setmessageShow";
				$('MessageBoxMel').setAttribute("class","setmessageShow");
				$('MessageBoxMel').setAttribute("className","setmessageShow");
				styles = { position : 'absolute',
				top : '0px',
				left : '0px',
				height : browserDims.height + 'px',
				width : browserDims.width + 'px',
				display : 'block'};
				$('MessageBoxMel').setStyle(styles);
			}
			
			var varScrol = document.viewport.getScrollOffsets();
			
			y=varScrol.top+200;
			
			styles = { position : 'absolute',
			top : y + 'px',
			left : x + 'px',
			display : 'block'};
			elt.setStyle(styles);
			//elt.scrollTo();
		}
		
		this.boxHide = function boxHide()
		{
			shower=false;
			clearInterval(timerx);
			var elt = $('question');
			var styles = { position : 'absolute',
			top : '0px',
			left : '0px',
			display : 'none'};
			elt.setStyle(styles);
			
			if($('MessageBoxMel'))
			{
				styles = { position : 'absolute',
				top : '0px',
				left : '0px',
				display : 'none'};
				$('MessageBoxMel').setStyle(styles);
			}
		}
	}
	var MessageBoxObj = new MessageBox();